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Aug 25, 2019, 11:40 PM
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Mini-Review

Diatone GTB339 Cube micro FPV drone



Diatone GTB339 Cube:
Banggood Coupon: AFFBG10   http://bit.ly/GtB339Cube

Very good and fast 3S 3 inch drone which is very light with the Runcam Nano 2 camera and TBS Pro32 Nano VTX

or the Diatone GTB229 Cube 8500KV 2S Version 2.5inch drone
from Banggood with Coupon: BGGTB  http://bit.ly/GtB229Cube
Very good and fast 2S 2.5 inch drone which weighs only 43 grams with a Runcam Nano 2 camera and TBS Pro32 Nano VTX

Pro:
- lighter 3 inch FPV racer
- Good Runcam Nano 2 camera
- powerfull VTX TBS Nano Pro 32 25-400mW
- very good motor 1105
- F4 Board 3-4S 12A ESC's
- external receiver such as R-XSR, CrossFire

Contra:
- Camera like Runcam Racer Nano or Foxeer Predator 4 Nano would be even better
- Video antenna only linear
- Motors a bit too fast with 5500KV for 3S battery

Video 1 - Diatone GTB339 Cube 3 inch FPV Micro Racer
Diatone GTB339 Cube 3 Zoll FPV Micro Racer (6 min 51 sec)


Suitable batteries:
BETAFPV 300mAh 3S 45C - https://amzn.to/2ZkvZS7
GNB 300mAh 3S 45C - http://bit.ly/Gnb3s80c
GNB 450MAH 2S 80C - http://bit.ly/GNB2S450mah
Tattu 450mAh 3S 75C
Banggood - http://bit.ly/Tattu450mah4S
Amazon - https://amzn.to/2XqM1W3

GNB 300mAh 3S 30C 
Banggood - http://bit.ly/Gnb300mAh3S
Amazon - https://amzn.to/2xg3kOx

Happymodel 300mAh 3S 30C 
Banggood - http://bit.ly/M7Hd300mAh
Amazon - https://amzn.to/2IQ4zdY

Turnigy Nano-Tech 300mAh 3S 45C -
HobbyKing - http://bit.ly/2AHM5YR

LiPo Pad:
URUAV PADSTAR Lipo Silicon Pad - http://bit.ly/UruPadStar
Transparent Silicone Gel Pad Banggood - http://bit.ly/2N33W16

Propellers:
HQProp T3X2 - Banggood - http://bit.ly/HQPropT3X2
original spare propeller for Diatone GTB339

HQProp T3X3 - Banggood - http://bit.ly/HQPropT3X3
The propellers should be even better than the HQ T3X2 and more durable











My configuration with FrSky R-XSR
The PID values are original from the Diatone.
On the GTB339, Betaflight 3.5.7 is installed with the following changes:

# diff 2019-08-23
# Betaflight / MAMBAF411 (MB41) 3.5.7 Jul 7 2019
name GTB339
feature -SOFTSERIAL
feature AIRMODE
beeper -SYSTEM_INIT
beeper -ON_USB
beeper -CRASH FLIP
beacon RX_LOST
beacon RX_SET
serial 1 2048 115200 57600 0 115200
aux 0 0 0 1850 2100 0 0
aux 1 1 1 900 1300 0 0
aux 2 2 1 1300 1700 0 0
aux 3 13 2 1700 2100 0 0
rxrange 0 987 2011
rxrange 1 987 2011
rxrange 2 987 2011
rxrange 3 987 2011
set gyro_lowpass_hz = 80
set gyro_lowpass2_hz = 350
set acc_calibration = 24,-48,149
set rssi_channel = 8
set motor_pwm_protocol = DSHOT600
set align_board_yaw = -90
set vbat_max_cell_voltage = 45
set vbat_min_cell_voltage = 31
set vbat_warning_cell_voltage = 32
set current_meter = NONE
set beeper_dshot_beacon_tone = 5
set small_angle = 180
set deadband = 4
set yaw_deadband = 4
set pid_process_denom = 1
set osd_cap_alarm = 700
set osd_vbat_pos = 2497
set osd_rssi_pos = 2433
set osd_tim_2_pos = 2518
set osd_anti_gravity_pos = 385
set osd_vtx_channel_pos = 439
set osd_current_pos = 233
set osd_mah_drawn_pos = 396
set osd_craft_name_pos = 2508
set osd_pidrate_profile_pos = 409
set osd_warnings_pos = 329
set osd_avg_cell_voltage_pos = 2465
profile 0
set dterm_notch_cutoff = 0
set anti_gravity_gain = 8000
set p_pitch = 22
set i_pitch = 31
set d_pitch = 25
set p_roll = 20
set i_roll = 32
set p_yaw = 27
set i_yaw = 32
set p_level = 85
set level_limit = 85
rateprofile 0
set tpa_rate = 30
set tpa_breakpoint = 1450


Original configuration
On the GTB339 is original Betaflight 3.5.7:
# diff 2019-08-22
# Betaflight / MAMBAF411 (MB41) 3.5.7 Jul 7 2019
name DIATONE
beacon RX_LOST
beacon RX_SET
serial 1 2048 115200 57600 0 115200
aux 0 0 0 1850 2100 0 0
aux 1 13 2 1700 2100 0 0
aux 2 28 0 1700 2100 0 0
set gyro_lowpass_hz = 80
set gyro_lowpass2_hz = 350
set motor_pwm_protocol = DSHOT600
set align_board_yaw = -90
set current_meter = NONE
set beeper_dshot_beacon_tone = 5
set small_angle = 180
set pid_process_denom = 1
set osd_cap_alarm = 700
set osd_vbat_pos = 2497
set osd_tim_2_pos = 2518
set osd_anti_gravity_pos = 2433
set osd_vtx_channel_pos = 2487
set osd_current_pos = 233
set osd_mah_drawn_pos = 396
set osd_craft_name_pos = 2102
set osd_pidrate_profile_pos = 409
set osd_warnings_pos = 329
set osd_avg_cell_voltage_pos = 2465
set vtx_band = 5
set vtx_channel = 3
set vtx_freq = 5732
profile 0
set dterm_notch_cutoff = 0
set anti_gravity_gain = 8000
set p_pitch = 22
set i_pitch = 31
set d_pitch = 25
set p_roll = 20
set i_roll = 32
set p_yaw = 27
set i_yaw = 32
rateprofile 0
set tpa_rate = 30
set tpa_breakpoint = 1450


More good RC parts or coupons on my blog:
https://kopterheld.wordpress.com/2018/01/01/news/

Kopterheld Coupons on Telegram App or FB:
Telegram - https://t.me/KopterHeld
Faceboog – http://bit.ly/KhFaceBo

My Equipment: (Banggood)
Fatshark Dominator HDO  - http://bit.ly/BgFaHDO
ImmersionRC RapidFIRE - http://bit.ly/BgRapidFire 
FrSky TARANIS Q X7 - http://bit.ly/2zLLvJq
FrSky X9D Plus SE - http://bit.ly/2z4KxXG
iRangeX IRX4 Plus Multi Modul - http://bit.ly/2QrTIeT
FrSky R-XSR - http://bit.ly/2S6rNyc
RunCam Racer 2 - http://bit.ly/2BZJCtq
RunCam Micro - http://bit.ly/2BPNnkL

Faceboog – http://bit.ly/KhFaceBo
Blog – https://kopterheld.tv/
RCGroups – https://goo.gl/JYP87D
Telegram - https://t.me/KopterHeld
Instagram - https://instagram.com/kopterheld
Twitter - https://twitter.com/kopterheld
Last edited by kopterheld; Aug 26, 2019 at 06:49 AM.
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